Installation and repair of septic tanks and septic systems. EZ Flow and Infiltrator Systems certified. Musser Septic Systems is a family business owned by Brian Musser who has been in the septic installation business since since 1992. We are located in the New Holland - Wagener area of South Carolina, and serve the Aiken, Lexington, Edgefield, Saluda, Orangeburg, Barnwell counties and surrounding areas. We are certified to install EZ Flow and Infiltrator Systems.